A mysterious, bulging turret fitted on the bow of a Chinese navy ship has provoked speculation that Beijing is testing a hypersonic “rail gun”, in what would be the first time such a weapon has been trialled at sea.
中國一艘海軍艦艇的艦首出現的一座神祕、突出的炮塔引發外界猜測：中國正測試一款超音速「軌道炮」，這將是這種武器首次在海上測試。
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